Elon Musk said the electric-car maker has expanded its U.S. network of rapid chargers to let owners of battery-powered Model S sedans drive their cars from coast to coast for the first time.

Musk, Tesla's chief executive officer and co-founder, said last year the company would set up “Superchargers” in most major U.S. and Canadian cities to permit long-distance trips solely on electricity provided at no charge. That claim has become a reality.

“Tesla Supercharger network now energized from New York to LA, both coast + Texas!” Musk said in a Twitter post Sunday. “Approx 80% of US population covered.” There are now 70 recharging stations providing free Tesla battery charging coast to coast.

I like the idea of being able to recharge at no charge, but I can't afford the initial cost of the vehicle. Still, what if I want to go outside the corridor marked on the map? Looks like I'd be on my own.